gpio: viperboard: Use devm_gpiochip_add_data() for gpio registration

Use devm_gpiochip_add_data() for GPIO registration and remove the
need of driver callback .remove.

Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>

diff --git a/drivers/gpio/gpio-viperboard.c b/drivers/gpio/gpio-viperboard.c
index 1170b035cb924253c3d0bfa47bbbd8ba194b1231..dec47aafd5cda0d9ed78ed96c1de23f0e17642f5 100644 (file)
--- a/drivers/gpio/gpio-viperboard.c
+++ b/drivers/gpio/gpio-viperboard.c
@@ -410,10 +410,10 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
        vb_gpio->gpioa.get = vprbrd_gpioa_get;
        vb_gpio->gpioa.direction_input = vprbrd_gpioa_direction_input;
        vb_gpio->gpioa.direction_output = vprbrd_gpioa_direction_output;
-       ret = gpiochip_add_data(&vb_gpio->gpioa, vb_gpio);
+       ret = devm_gpiochip_add_data(&pdev->dev, &vb_gpio->gpioa, vb_gpio);
        if (ret < 0) {
                dev_err(vb_gpio->gpioa.parent, "could not add gpio a");
-               goto err_gpioa;
+               return ret;
        }
 
        /* registering gpio b */
@@ -427,37 +427,21 @@ static int vprbrd_gpio_probe(struct platform_device *pdev)
        vb_gpio->gpiob.get = vprbrd_gpiob_get;
        vb_gpio->gpiob.direction_input = vprbrd_gpiob_direction_input;
        vb_gpio->gpiob.direction_output = vprbrd_gpiob_direction_output;
-       ret = gpiochip_add_data(&vb_gpio->gpiob, vb_gpio);
+       ret = devm_gpiochip_add_data(&pdev->dev, &vb_gpio->gpiob, vb_gpio);
        if (ret < 0) {
                dev_err(vb_gpio->gpiob.parent, "could not add gpio b");
-               goto err_gpiob;
+               return ret;
        }
 
        platform_set_drvdata(pdev, vb_gpio);
 
        return ret;
-
-err_gpiob:
-       gpiochip_remove(&vb_gpio->gpioa);
-
-err_gpioa:
-       return ret;
-}
-
-static int vprbrd_gpio_remove(struct platform_device *pdev)
-{
-       struct vprbrd_gpio *vb_gpio = platform_get_drvdata(pdev);
-
-       gpiochip_remove(&vb_gpio->gpiob);
-
-       return 0;
 }
 
 static struct platform_driver vprbrd_gpio_driver = {
        .driver.name    = "viperboard-gpio",
        .driver.owner   = THIS_MODULE,
        .probe          = vprbrd_gpio_probe,
-       .remove         = vprbrd_gpio_remove,
 };
 
 static int __init vprbrd_gpio_init(void)